twistyjungle914 twistyjungle914

24-09-2020
Mathematics

contestada

the mean marks for a french test in a class of 30 boys and 20 girls are 60 and 70 respectively. find the mean mark for the whole class

Respuesta :

gabriellasuarez35 gabriellasuarez35

24-09-2020

Answer:

30×60=1800

20×70=1400

1400+1800

3200÷(30+20)

3200÷50

64

the mean mark is 64

Answer Link

Otras preguntas

Nice paragraph on western culture has done more harm than good to our culture

The best actions you can take to move quickly through denial to decisive action are all of the following except? 1) Understand the actions you can take given th

2. A farmer wants to establish a pure strain of roan cattle that breedstrue Why is this impossible?

groote schuur minute 2 may 1990 hl

In "History: A Novel" ("La Storia") by Elsa Morante, 1-Articulate the interpretive problem, question, or puzzle that you will engage in your paper. 2- Indicate

strengths of the element bismuth

Jack Tenney, a member of the State Legislature in Sacramento, is best known for: A) forced the Regents of the University of California to adopt a Loyalty Oath

What was the overall goal of the United Farm Workers Union according to this excerpt from one of Cesar Chavez's speeches? What were some of the demands being ma

If mBC= (9x - 53) and mCD = (2x + 45)*, find mBAD.

what element is in the nonmetal halogen family with an atomic mass of 35